This is the best book you can read if you interested in learning more about the roll of the Canadian Expeditionary Force in the last 100 days of the Great War of 1914-1921 (First World War). More that 13,000 Canadians lost their lives in those final 100 days, about 20 percent of the total Canadian loses in the war. If you prefer to "listen" to the book, you can do so via the Librivox system here:
https://librivox.org/canadas-one-hundred-days-part-on-by-john-livesay/